// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

package xkcdsearch

import (
	"strings"
)

const baseURL = "https://xkcd.com"

// Document wraps an xkcd.com comic.
//
type Document struct {
	ID        string `json:"id"`
	ImageURL  string `json:"image_url"`
	Published string `json:"published"`

	Title      string `json:"title"`
	Alt        string `json:"alt"`
	Transcript string `json:"transcript"`
	Link       string `json:"link,omitempty"`
	News       string `json:"news,omitempty"`
}

// URL returns the full URL to the comic.
//
func (d *Document) URL() string {
	var b strings.Builder

	b.WriteString(baseURL)
	b.WriteString("/")
	b.WriteString(d.ID)
	b.WriteString("/")

	return b.String()
}
